CN102182728B - Method for generating pulse hydraulic pressure - Google Patents
Method for generating pulse hydraulic pressure Download PDFInfo
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- CN102182728B CN102182728B CN 201110101346 CN201110101346A CN102182728B CN 102182728 B CN102182728 B CN 102182728B CN 201110101346 CN201110101346 CN 201110101346 CN 201110101346 A CN201110101346 A CN 201110101346A CN 102182728 B CN102182728 B CN 102182728B
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- piston rod
- hydraulic pressure
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Abstract
The invention discloses a method for generating pulse hydraulic pressure. The method is characterized by comprising the following steps of: 1, arranging a hydraulic cavity in a forming mould and filling the hydraulic cavity with liquid; 2, arranging two moving piston rods at the two sides of the hydraulic cavity and sealing perfectly; 3, connecting a dynamic structure with the two piston rods respectively; and 4, starting an external dynamic structure, pushing one of the piston rods by an external force to do a reciprocating movement, extruding the liquid in the cavity to generate the vertically-alternate pulse hydraulic pressure, pushing the other piston rod by the external force to do a liner movement, and extruding the liquid in the cavity to generate gradually-increased hydraulic pressure. The invention has the advantages that: different pulse hydraulic pressure can be obtained by controlling the moving speed and the travelling distance of the two piston rods, and the method is simple in structure and strong in operation and can effectively improve the quality of a forming part.
Description
Technical field
The present invention relates to a kind of method that produces pulse hydraulic power, particularly be applied to a kind of method that produces pulse hydraulic power of sheet metal or tubing hydraulic forming.
Background technique
In modern age industrial field such as space flight and aviation, automobile, the demand of various metal partss with use more and more widely.In some smart high-end field, traditional manufacturing process of metal parts has been difficult to satisfy its usage requirement.How the good metal parts of processability to satisfy the industrial development demand, has become the research focus in this field.
The new technology that the hydraulic forming technology produces under this background just, good characteristics such as intensity height, compactness are good because the part of hydraulic forming technology preparation has, good extending performance are developed rapidly in recent years.Wherein, the hydraulic loaded mode has material impact to part hydraulic forming performance, simple linearity or broken line load, the easy attenuation of drip molding wall thickness that obtains and breaking, and do not reach desirable bulging height, and the pulsation loading can obtain bigger limit forming height, and improves the part forming performance.Pulse hydraulic is shaped and refers to: in hydroforming process, make hydraulic coupling change according to certain frequency and amplitude pulsations, thereby improve the part forming performance.It is to be proposed in calendar year 2001 by Japanese scholar Rikimaru that pulse hydraulic is shaped, and is applied to the hydraulic expanding-forming of tubing.
At present, about producing the method for pulse hydraulic power, disclosed report is also less.The Japan Yogo of Fu Tong company difficult to understand (Opton Co.) has developed a kind of pulse hydraulic loading and shaping numerical control system, this system can realize by changing loading parameters, obtain the pulse hydraulic power of different fluctuating parameters, but because this numerical control system costliness, the mould-forming method complexity, it is very high to produce experimental cost, and this has limited the development of pulse hydraulic forming technique to a certain extent.
Summary of the invention
The objective of the invention is at present generation pulse hydraulic power mould-forming method complexity, deficiency that cost is high, and provide a kind of easy, less demanding and application cost is low to Environmental Conditions, be applicable to the production method of the pulse hydraulic power of sheet metal or tubing hydraulic forming.
The production method of pulse hydraulic power of the present invention comprises the steps:
(1) hydraulic pressure cavity is set in forming die, in hydraulic pressure cavity, fills with liquid;
(2) two moving piston bars are set in the hydraulic pressure cavity both sides, and good seal;
(3) dynamic structure is connected with two piston rods respectively;
(4) start external dynamic structure, it is reciprocating that external force promotes a piston rod, liquid in the extrusion chamber, and the pulsed hydraulic coupling of generation alternatively up and down, external force promotes another piston rod moving linearly, and liquid in the extrusion chamber produces the hydraulic coupling that increases gradually.
One side of described hydraulic pressure cavity is provided with flow-off.
The dynamic structure of two piston rods of the described hydraulic pressure cavity of step (3) both sides is one speed reducer and is arranged on the many lobes cam on the reducer input shaft, the annexes such as disc cam on the output shaft, the both sides of hydraulic pressure cavity are respectively arranged with piston rod a and piston rod b, piston rod a is provided with rolling bearing, piston rod a is connected with many lobes cam on the reducer input shaft by rolling bearing, and it is reciprocating that retarder promotes piston rod a; Piston rod b is connected with disc cam on the reducer output shaft, and retarder promotes piston rod b moving linearly.
Advantage of the present invention is: the speed by controlling two piston rod movements and mobile distance, can obtain different pulse hydraulic power, and simple in structure, strong operability can effectively improve the quality of formation of parts.
Description of drawings
The structural representation that Fig. 1 produces for pulse hydraulic power;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 makes the schematic representation of sheet forming for pulse hydraulic power.
Among the figure: 1. liquid 6. piston rod b, 7. base plate 8.O RunddichtringO 9. retarders, 10. rolling bearings lobe more than 11. cam 12. disc cams 13. screws 14. hydraulic coupling P in pressed edge ring 2. plates, 3. piston rod a 4. hydraulic chambers, 5. hydraulic pressure cavity and the chamber
Embodiment
With reference to Fig. 1, Fig. 2, the generation device of pulse hydraulic power of the present invention, by the hydraulic chamber 4 that arranges at same base plate 7 and the liquid 5 in hydraulic pressure cavity and the chamber, liquid 5 both sides in hydraulic pressure cavity and the chamber arrange pistons reciprocating bar a3 and straight-line piston rod b6 respectively, piston rod a3 is provided with rolling bearing 10, the input shaft of retarder 9 is provided with many lobes cam 11, many lobes cam 11 is connected with pistons reciprocating bar a3 by rolling bearing 10, the output shaft of retarder 9 is provided with disc cam 12, retarder 9 is connected with straight-line piston rod b6 by disc cam 12, at piston rod a3, piston rod b6 is provided with O RunddichtringO 8.
With reference to Fig. 3, pulse hydraulic power is shaped sheet metal bending, specifically comprises the steps:
(1) hydraulic chamber 4 is set in forming die, the liquid 5 in hydraulic pressure cavity and the chamber is set in hydraulic chamber 4;
(2) with pressure coil 1 plate 2 is pressed on the hydraulic chamber 4, and exposes the part that will be shaped, good seal arranges two moving piston bar a3, b6 in hydraulic chamber 4, and piston rod a3 and piston rod b6 and hydraulic pressure cavity are connected with liquid 5 in the chamber;
(3) it is reciprocating to promote piston rod a3 with retarder 9, liquid in the extrusion chamber, the pulsed hydraulic coupling of generation alternatively up and down; Promote piston rod b6 moving linearly with retarder 9, liquid in the extrusion chamber produces the hydraulic coupling P14 that increases gradually;
(4) under the effect of pulse hydraulic power P, plate 2 bending formings.
Claims (1)
1. the production method of a pulse hydraulic power is characterized in that: comprise the steps:
(1) hydraulic pressure cavity is set in forming die, in hydraulic pressure cavity, fills with liquid;
(2) two moving piston bars are set in the hydraulic pressure cavity both sides, and good seal;
(3) dynamic structure is connected with two piston rods respectively; Described dynamic structure is one speed reducer and is arranged on the many lobes cam on the reducer input shaft, the disc cam on the output shaft, the both sides of hydraulic pressure cavity are respectively arranged with piston rod a and piston rod b, piston rod a is provided with rolling bearing, piston rod a is connected with many lobes cam on the reducer input shaft by rolling bearing, and it is reciprocating to promote piston rod a; Piston rod b is connected with disc cam on the reducer output shaft, and retarder promotes piston rod b moving linearly;
(4) start external dynamic structure, it is reciprocating that external force promotes a piston rod, liquid in the extrusion chamber, produce the pulsed hydraulic coupling of alternatively up and down, external force promotes another piston rod moving linearly, and liquid in the extrusion chamber produces the hydraulic coupling that increases gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110101346 CN102182728B (en) | 2011-04-20 | 2011-04-20 | Method for generating pulse hydraulic pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110101346 CN102182728B (en) | 2011-04-20 | 2011-04-20 | Method for generating pulse hydraulic pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102182728A CN102182728A (en) | 2011-09-14 |
| CN102182728B true CN102182728B (en) | 2013-07-03 |
Family
ID=44568998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110101346 Expired - Fee Related CN102182728B (en) | 2011-04-20 | 2011-04-20 | Method for generating pulse hydraulic pressure |
Country Status (1)
| Country | Link |
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| CN (1) | CN102182728B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108405698B (en) * | 2016-12-20 | 2019-11-19 | 合肥海诺恒信息科技有限公司 | A kind of high-pressure forming method |
| RU2669060C1 (en) * | 2017-10-27 | 2018-10-08 | Общество с ограниченной ответственностью Научно-производственное предприятие "ЭНИМС-Интергидропривод" | Hydro-pulsator |
| CN112985955B (en) * | 2021-02-26 | 2022-04-12 | 中国矿业大学 | Rapid immersion method for rock mechanics experiment test piece |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB688777A (en) * | 1950-06-27 | 1953-03-11 | Ian Nuttall Merrill | Improvements in or relating to diaphragm pumps |
| CN2924061Y (en) * | 2006-06-21 | 2007-07-18 | 苏州东菱振动试验仪器有限公司 | Pulse pump |
| CN101769818A (en) * | 2010-02-08 | 2010-07-07 | 中华人民共和国无锡出入境检验检疫局 | Pneumatic hydraulic servo horizontal impact tester |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11159448A (en) * | 1997-11-21 | 1999-06-15 | Yamato Boring Kk | Cam type pump |
-
2011
- 2011-04-20 CN CN 201110101346 patent/CN102182728B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB688777A (en) * | 1950-06-27 | 1953-03-11 | Ian Nuttall Merrill | Improvements in or relating to diaphragm pumps |
| CN2924061Y (en) * | 2006-06-21 | 2007-07-18 | 苏州东菱振动试验仪器有限公司 | Pulse pump |
| CN101769818A (en) * | 2010-02-08 | 2010-07-07 | 中华人民共和国无锡出入境检验检疫局 | Pneumatic hydraulic servo horizontal impact tester |
Non-Patent Citations (3)
| Title |
|---|
| JP特开平11-159448A 1999.06.15 |
| 张国权.液压成形法的压力控制机构.《锻压机械》.1985,(第4期), |
| 液压成形法的压力控制机构;张国权;《锻压机械》;19850831(第4期);45-47 * |
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| CN102182728A (en) | 2011-09-14 |
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Granted publication date: 20130703 Termination date: 20200420 |